Preparation and characterization of monoclonal antibodies to the cholera toxin |
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| Authors: | E E Petrova R L Komaleva O E Lakhtina L V Samokhvalova N A Kalinina N S Shoshina A Yu Rubina M A Filippova Yu V Vertiev T I Valyakina Ye V Grishin |
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| Institution: | (1) Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, V-437, Moscow, 117997, Russia;(2) Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia;(3) Gamaleya Research Institute of Epidemiology and Microbiology, Russian Academy of Medical Sciences, Moscow, Russia |
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| Abstract: | Monoclonal antibodies to cholera toxin were obtained. They do not cross-react with the termolabile toxin (LT) of Escherichia coli, ricin, diphtherial toxin, staphylococcus enterotoxins of SEA, SEB, SEI, SEG, or the lethal factor and protective antigen of the anthrax toxin. Pairs of antibodies for the quantitative measurement of the cholera toxin in sandwich enzyme immunoassay (EIA) were selected. The detection limit of the toxin is 0.2 ng/ml for plate EIA and 0.44 ng/ml for microchip EIA. The presence of milk, broth, or surface water in the toxin samples does not reduce the sensitivity of EIA. |
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| Keywords: | enzyme immunoassay sandwich assay biological microchip B subunit of cholera toxin cholera toxin monoclonal antibodies |
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